Vehicle grommet

ABSTRACT

A grommet is attached between a body panel and a trunk lid at a location spaced from a hinge that movably supports the trunk lid. The grommet is located inboard of the hinge and is attached only to the body panel and trunk lid and free from connection to the hinge. The grommet includes a body mounting end attached to the body panel, a trunk lid mounting end, a first flexible section extending from the body mounting end, a second flexible section extending from the trunk lid mounting end and a middle section extending between the first and second flexible sections. The first flexible section and the second flexible section are configured and arranged to bend as the trunk lid moves between the open position and the closed position to prevent contact of the grommet to the hinge.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation application of U.S. patentapplication Ser. No. 11/776,399 filed on Jul. 11, 2007. The entiredisclosure of U.S. patent application Ser. No. 11/776,399 is herebyincorporated herein by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention generally relates to a vehicle grommet. Morespecifically, the present invention relates to vehicle grommet that hasa flexible design that allows the grommet to move between an elongatedorientation and a coiled orientation.

2. Background Information

Many vehicles have closure panels that include electrically poweredfixtures. Vehicle doors are one example of a closure panel that caninclude such electrically powered accessories such as electric doorlocks, electric side rear view mirror, etc. A vehicle trunk lid isanother example of the closure panel that can include electricallypowered accessories such as tail lights, stop lights and/or licenseplate lights. It is therefore necessary to install insulated electricalconducting wires between the vehicle body and the closure panel.Typically, a hole is formed in a portion of the vehicle body panel,another hole is formed in the closure panel. Wires extend through bothholes to provide electric power from the vehicle body to the accessorieson or in the closure panel.

The wires that extend between the vehicle body and closure panel aretypically protected by a flexible conduit or hollow tube-shaped grommet.More specifically, the grommet has mounting ends that extend into therespective holes in the vehicle body and the closure panel. The wiresextend through the grommet. The grommet is shaped and dimensioned suchthat the wires are prevented from contacting edges of the holes in thevehicle body and the closure panel. Therefore, the insulation on thewires is protected and electrical shorting to metallic portions of thevehicle body is prevented.

A trunk lid of a vehicle is typically supported by hinges such that thetrunk lid can move between a closed position and an open position. Thehinges are typically installed at opposite lateral sides of the trunkspace. In applications where a grommet is installed between the vehiclebody and the trunk lid, the grommet must be able to extend to anextended or elongated orientation with the trunk lid in an open positionand collapse to a compressed orientation in the closed position.Currently a mid-portion of the grommet is supported by a bracketattached to one of the trunk lid hinges. The bracket serves to keep thegrommet from being pinched or crushed by the hinge as the trunk lidcloses. As the trunk lid opens, a mid-portion of the grommet moves withone of the trunk lid hinges. As the trunk lid closes, the mid-portion ofthe grommet is pulled downward to a specific location that is dependentupon the movement of the hinge and the trunk lid. During the movement ofthe trunk lid, the bracket attached to the hinge, keeps the grommetspaced apart from the hinge.

Using a grommet having a mid-portion that requires attachment to a trunklid hinge has at least two dis-advantages. First, additionalinstallation steps are required to install the bracket on the hinge andto the mid-portion of the grommet. Second, the bracket itself is anextra part required for installation of the grommet.

In view of the above, it will be apparent to those skilled in the artfrom this disclosure that there exists a need for an improved grommetthat includes fewer attachment parts and yet will collapse into a smalloverall space while protecting wires extending therethough. Thisinvention addresses this need in the art as well as other needs, whichwill become apparent to those skilled in the art from this disclosure.

SUMMARY OF THE INVENTION

In accordance with one aspect of the invention, a vehicle trunkstructure includes a body panel, a trunk lid, a hinge structure and awiring grommet member. The body panel defines a trunk opening and afirst wire passage opening. The trunk lid is dimensioned to cover thetrunk opening and defining a second wire passage opening. The hingestructure pivotally couples the body panel to the closure panel formovement of the trunk lid between a closed position where the trunk lidconceals the trunk opening and an open position where the trunk lidexposes the trunk opening. The wiring grommet member is located inboardof the hinge structure. The wiring grommet member is attached only tothe body panel and closure panel and is free from connection to thehinge structure. The wiring grommet member forms a wiring passagewaybetween the first and second wire passage openings. The wiring grommetmember includes a first attachment part, a second attachment part, afirst transition part, a second transition part and a flexible portion.The first attachment part is attached to one of the body panel and thetrunk lid to overlie the corresponding one of the first and second wirepassage openings. The second attachment part is attached to the other ofthe body panel and the trunk lid to overlie the corresponding other ofthe first and second wire passage openings. The first transition partextends away from the first attachment part in a direction that definesan acute angle relative to the one of the body panel and the trunk lid.The second transition part extends away from the second attachment partin a direction that defines an acute angle relative to the other of thebody panel and the trunk lid. The flexible portion extends between thefirst transition part and the second transition part. The flexibleportion is configured and arranged to bend as the closure panel movesbetween the open position and the closed position to prevent contact ofthe grommet member to the hinge structure.

These and other objects, features, aspects and advantages of the presentinvention will become apparent to those skilled in the art from thefollowing detailed description, which, taken in conjunction with theannexed drawings, discloses a preferred embodiment of the presentinvention.

BRIEF DESCRIPTION OF THE DRAWINGS

Referring now to the attached drawings which form a part of thisoriginal disclosure:

FIG. 1 is a rear perspective view of a vehicle showing a vehicle bodythat includes a outer side body panel and a trunk lid with the trunk lidin a closed position concealing a vehicle trunk in accordance with thepresent invention;

FIG. 2 is another rear perspective view of the vehicle showing the trunklid in an open position revealing a grommet, with the grommet in anextended or elongated orientation extending between the vehicle body andthe trunk lid in accordance with a first embodiment of the presentinvention;

FIG. 3 is another rear perspective view of the vehicle similar to FIG.2, showing the trunk lid in an open position but with the grommetdepicted in phantom to reveal a first opening in a rear window supportportion of the vehicle body and a second opening in the trunk lid inaccordance with the first embodiment of the present invention;

FIG. 4 is a perspective view of the grommet showing a body mounting end,a closure panel mounting end, a first flexible portion, a secondflexible portion and a middle flexible portion in accordance with thefirst embodiment of the present invention;

FIG. 5 is a first side elevational view of the grommet in accordancewith the first embodiment of the present invention;

FIG. 6 is a second side elevational view of the grommet in accordancewith the first embodiment of the present invention;

FIG. 7 is an enlarged first side elevational view of grommet showing theclosure panel mounting end of the grommet in accordance with the firstembodiment of the present invention;

FIG. 8 is cross-sectional view of the grommet taken along the line 8-8in FIG. 8 showing examples of thicknesses of various portions of thegrommet in accordance with the first embodiment of the presentinvention;

FIG. 9 is a side schematic view showing a representation of a portion ofthe vehicle, a portion of the trunk lid and the grommet showing the bodymounting end of the grommet attached to the vehicle body and the closurepanel mounting end of the grommet attached to the trunk lid, with thetrunk lid in the closed position and the grommet in a coiled orientationin accordance with the first embodiment of the present invention;

FIG. 10 is another side schematic view similar to FIG. 9, showing thetrunk lid in an intermediate position between the open position and theclosed position, with the grommet partially uncoiled in accordance withthe first embodiment of the present invention;

FIG. 11 is yet another side schematic view similar to FIGS. 9 and 10,showing the trunk lid in the open position and with the grommet in anelongated orientation in accordance with the first embodiment of thepresent invention;

FIG. 12 is a rear schematic view showing a representation of the portionof the vehicle, the portion of the trunk lid and the grommet showing thebody mounting end of the grommet attached to the vehicle body and theclosure panel mounting end of the grommet attached to the trunk lid,with the trunk lid in the closed position and the grommet in the coiledorientation in accordance with the first embodiment of the presentinvention;

FIG. 13 is another rear schematic view similar to FIG. 12, showing thetrunk lid in an intermediate position between the open position and theclosed position, with the grommet partially uncoiled in accordance withthe first embodiment of the present invention;

FIG. 14 is yet another rear schematic view similar to FIGS. 12 and 13,showing the trunk lid in the open position and with the grommet in anelongated orientation in accordance with the first embodiment of thepresent invention;

FIG. 15 is a first side elevational view of a grommet in accordance witha second embodiment of the present invention; and

FIG. 16 is a second side elevational view of the grommet in accordancewith the second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Selected embodiments of the present invention will now be explained withreference to the drawings. It will be apparent to those skilled in theart from this disclosure that the following descriptions of theembodiments of the present invention are provided for illustration onlyand not for the purpose of limiting the invention as defined by theappended claims and their equivalents.

Referring initially to FIG. 1, a vehicle 10 is illustrated in accordancewith a first embodiment of the present invention. As shown in FIG. 2,the vehicle 10 includes a grommet 12 that is installed between a vehiclebody 14 and a movable trunk lid 16. The grommet 12 is designed to flexbetween an elongated orientation (FIGS. 2, 11 and 14) and a coiledorientation (FIGS. 9 and 12) as the trunk lid 16 moves between an openposition (FIGS. 2, 11 and 14) and a closed position (FIGS. 1, 9 and 12),as described in greater detail below.

As best shown in FIG. 2, the vehicle body 14 of the vehicle 10 includesan outer side body panel 18, a rear window support portion 20, an innerside body panel 22, a trunk wall 24, a trunk seal 26 and a trunk opening28.

The outer side body panel 18, the rear window support portion 20 and theinner side body panel 22 are part of a body panel assembly of thevehicle body 14 that at least partially defines the trunk opening 28.Two conventional hinges 32 are mounted between the inner side body panel22 and a portion of the trunk lid 16. It should be understood from thedrawings and the description herein that there are two hinges 32, one oneach side of the trunk lid 16. However, only one hinge 32 is shown inFIG. 2. For the sake of brevity, only one hinge 32 is described herein.

Adjacent to the hinge 32 is a conventional pneumatic cylinder 34 thatbiases the trunk lid 16 toward the open position, as shown in FIGS. 2and 3. The pneumatic cylinder 34 is also mounted between the inner sidebody panel 22 and a portion of the trunk lid 16. A rear window 36 (shownin FIG. 1) is supported on the rear window support portion 20 in aconventional manner. The trunk seal 26 is a conventional sealing memberinstalled on the rear window support portion 20 and the inner side bodypanel 22 in a conventional manner. The trunk seal 26 provides a sealbetween the trunk lid 16 and the vehicle body 14 with the trunk lid 16in the closed position. The trunk seal 26 can partially or completelysurround or encircle the trunk opening 28, depending on the overalldesign of the trunk of the vehicle 10.

As shown in FIG. 3, the rear window support portion 20 includes a firstopening 38. The first opening 38 in the rear window support portion 20is provided in order to allow passage of wires W that extend out of thevehicle body and into the trunk lid 16. It should be understood from thedrawings and description herein that the first opening 38 and wires Ware conventional parts of the vehicle 10. For example, the wires W canbe included in the vehicle 10 to provide electric power a rear licenseplate light L (see FIG. 1), an optional electric truck lid lock (notshown) or an optional interior trunk light (not shown) provided on aninterior surface of the trunk lid 16. Since such wires W areconventional elements, further description of the wires W is omitted forthe sake of brevity.

It should also be understood from the drawings and the descriptionherein that the first opening 38 can be provided at any of a variety oflocations on either the rear window support portion 20 or the inner sidebody panel 22 so long as the first opening 38 is spaced apart from thehinge 32.

The outer side body panel 18, the rear window support portion 20 and theinner side body panel 22, the trunk seal 26, the hinge 32, the pneumaticcylinder 34 and the rear window 36 are all conventional vehicle elementsor vehicle body portions. Therefore, further description of theseelements and vehicle body portions is omitted for the sake of brevity.

As indicated in FIGS. 1 and 2, the trunk lid 16 is a closure panel thatis movable between the open position (FIGS. 2, 3, 11 and 14) and theclosed position (FIGS. 1, 9 and 12) to conceal the trunk opening 28 andthe trunk itself. The truck lid 16 is also a conventional vehicle bodymember that includes an outer surface 40 (FIG. 1) that has a licenseplate retaining portion 42, the license plate light L, and an innersurface 44 (FIG. 2) that can include the optional electric truck lidlock (not shown) and the optional interior trunk light (not shown).Optionally, the outer surface 40 of the trunk lid 16 can also include aturn signal lamp (not shown), a stop lamp (not shown) or otherelectrically powered elements that can require electric power.

The hinge 32 is attached to the inner surface 44 of the trunk lid 16, asshown in FIGS. 2 and 3. The hinge 32, the trunk lid 16 and the innerside body panel 22 basically define a hinge structure for the vehicle10. The hinge structure pivotally couples the inner side panel 22 to thetrunk lid 16 (the closure panel) for movement of the trunk lid 16between the closed position and the open position.

The inner surface 44 of the trunk lid 16 also includes a second opening46 shown in FIG. 3. It should be noted that the grommet 12 is shown inphantom in FIG. 3 in order to reveal the first opening 38 and the secondopening 46 and the wiring W extending through a passageway P of thegrommet 12. The wires W extend between the vehicle body 14 to the trunklid 16 by extending out of the first opening 38 and into the secondopening 46 of the trunk lid 16. The edges of the first and secondopenings 38 and 46 can damage the wires W with the trunk lid 16repeatedly moving back and forth between the closed position and theopen position. However, since the wiring W extends through thepassageway P of the grommet 12, the grommet 12 prevents the wires W fromcontacting the edges of the first and second openings 38 and 46 therebypreventing such damage.

With initial reference to FIGS. 5-8, a description of the grommet 12 isnow provided. The grommet 12 is a wiring grommet member that serves as aconduit for the wires W. The grommet 12 is attached to the vehicle 10between the inner side body panel 22 (the body panel) and the trunk lid16 (the closure panel) at a location spaced from the hinge 32 (the hingestructure) forming a wiring passageway between the first and secondopenings 38 and 46. However, it should be understood from the drawingsand the description herein that the grommet 12 can be used with otherclosure panels of a vehicle where the closure panel is, for example, adoor, engine hood or storage compartment door of the vehicle.

The grommet 12 basically includes a body mounting end 50, a closurepanel mounting end 52, a first flexible section 54, a second flexiblesection 56 and a middle flexible section 58. The grommet 12 furtherincludes a hollow interior that defines the passageway P, as best shownin FIG. 8. The passageway P serves as a conduit for the wiring W. Thefirst flexible section 54, the second flexible section 56 and the middleflexible section 58 are each configurable for tuned bending. Morespecifically, the first flexible section 54, the second flexible section56 and the middle flexible section 58 can each be tuned or configured toprovide the grommet 12 with a bending configuration that allows foropening and closing of the trunk lid 16 without interference with thegrommet 12, as described in greater detail below.

Preferably, the body mounting end 50, the closure panel mounting end 52,the first flexible section 54, the second flexible section 56 and themiddle flexible section 58 are all made as a single unitary homogeneousmember. For example, the grommet 12 can be molded as a single watertightunitary member. However, it should be understood from the drawings andthe description herein that the grommet 12 can also be made of separateportions fastened, glued or otherwise adhered to one another in a watertight manner. More specifically, the grommet 12 is preferably made as awater tight conduit through which wires W can extend and be protectedfrom rain and other elements of nature. It should be understood from thedrawings and the description herein that the wires W depicted in FIG. 3can include a single wire, a group of wires, a wiring harness or bundledwires that provide electric power from the vehicle 10 to electricallypowered devices, such as the license plate light L, that are installedon or within the trunk lid 16.

As best shown in FIG. 6, the body mounting end 50 includes a base part62, an attachment part 64 and a transition part 66. The overall shape ofthe base part 62 conforms to the overall shape of the first opening 38in the rear window support portion 20. However, the base part 62 islarger than the first opening 38, as indicated in FIGS. 3, 9, 10 and 11.The attachment part 64 extends from the base part 62 and includes aretention groove 68 and a conduit extension 70. The retention groove 68extends around the outer periphery of the base part 62. The retentiongroove 68 is preferably dimensioned to conform to the size and shape ofthe first opening 38. More specifically, the attachment part 64 installsin the first opening 38. When installed, the edge of the rear windowsupport portion 20 that defines the first opening 38 extend into theretention groove 68 thereby retaining the base part 62 in positionrelative to the vehicle body 14, as indicated in FIGS. 9, 10 and 11.Since the base part 62 is dimensioned larger than the first opening 38,when the base part 62 of the body mounting end 50 is attached to therear window support portion 20 (the body panel), the base part 62overlies the first opening 38, as also indicated in FIGS. 9, 10 and 11.

The transition part 66 is shaped to provide sufficient internal space togain access to the passageway P within the grommet 12, as shown in FIG.8. With sufficient internal space within the transition part 66, thewires W can easily be inserted through the passageway P of the grommet12. The transition part 66 is oriented such that the first flexiblesection 54 is angled by a 90 degree angle relative to the base part 62,as shown in FIG. 6. In other words, the first flexible section 54 andthe conduit extension 70 extend away from one another at a 90 degreeangle. The conduit extension 70 is preferably a hollow cylindricallyshaped projection extending from the attachment part 64. The conduitextension 70 can be used to further guide the wiring W in a desireddirection within the vehicle 10.

It should be understood from the drawings and the description herein,that the attachment part 64 of the body mounting end 50 of the grommet12 and the first opening 38 can be provided with shapes other than thedepicted shapes as long as the overall shape of the attachment part 64(and the retention groove 68) and the overall shape of the first opening38 conform to one another. As well, the overall shape of the attachmentpart 64 and the overall shape of the first opening 38 are furtherconfigured to prevent rotation of the body mounting end 50 relative tothe first opening 38.

As best shown in FIG. 6, the closure panel mounting end 52 includes abase part 72, an attachment part 74, a transition part 76 and a tubularpart 78. The overall shape of the base part 72 conforms to the overallshape of the second opening 46 in the trunk lid 16. However, the basepart 72 is larger than the second opening 46, as indicated in FIGS. 9,10 and 11. The attachment part 74 extends from the base part 72 andincludes a retention groove 80. The retention groove 80 extends aroundthe outer periphery of the base part 72. The retention groove 80 ispreferably dimensioned to conform to the size and shape of the secondopening 46. More specifically, the attachment part 74 installs in thesecond opening 46. When installed, the edge of the trunk lid 16 thatdefines the second opening 46 extends into the retention groove 80thereby retaining the base part 72 in position relative to the vehiclebody 14, as indicated in FIGS. 9, 10 and 11. Since the base part 72 isdimensioned larger than the second opening 46, when the base part 72 ofthe closure panel mounting end 52 is attached to the trunk lid 16 (theclosure panel), the base part 72 overlies the second opening 46, asindicated in FIGS. 9-11.

The transition part 76 is shaped to provide sufficient internal space togain access to the passageway P defined within the grommet 12, as shownin FIG. 8. With sufficient internal space within the transition part 76,the wires W can easily be inserted through the passageway P of thegrommet 12.

The transition part 76 is also oriented such that the tubular part 78 isangularly offset from the base part 72 by angles that that aremeasurable in two different orthogonal planes corresponding to the viewsin FIGS. 5 and 6. Specifically, as measured in the plane defined by FIG.5, the tubular part 78 extends away from the base part 72 by an angle α₁that is preferably approximately 10 degrees. As measured in the planedefined by FIG. 6, the tubular part 78 extends away from the base part72 by an angle α₂ that is preferably approximately 25 degrees. However,it should be understood from the drawings and the description hereinthat the angle α₁ and the angle α₂ can be adjusted to meet the geometricrequirements of vehicles other that the vehicle 10 depicted in FIG. 1.

In other words, the closure panel mounting end 52 includes theattachment part 74 (an attachment portion) having an oval-like shapethat extends in a first direction D₁ with the second flexible end 56extending from the closure panel mounting end 52 in a second directionD₂ that is angularly offset from first direction D₁, as shown in FIG. 5.However, from the orthogonal view in FIG. 6, it can be seen that theclosure panel mounting end 52 includes the attachment part 74 thatextends in the third direction D₃ and the second flexible end 56 extendsfrom the closure panel mounting end 52 in the second direction D₂ thatis angularly offset from third direction D₃.

It should be understood from the drawings and the description hereinthat the transition part 66 of the body mounting end 50 can alsosimilarly be provided with angular offsets to meet the geometricrequirements of vehicles other that the vehicle 10 depicted in FIG. 1.However, in the depicted embodiment, the transition part 66 is shapedsuch that at the point where the first flexible section 54 meets thebase part 62, the first flexible section 54 extends in a directiongenerally parallel to the base part 62.

It should be understood from the drawings and the description hereinthat the attachment part 74 of the closure panel mounting end 52 of thegrommet 12 and the second opening 46 can be provided with shapes otherthan the depicted shapes as long as the overall shape of the attachmentpart 74 (and the retention groove 80) and the overall shape of thesecond opening 46 conform to one another. As well, the overall shape ofthe attachment part 74 and the overall shape of the second opening 46are further configured to prevent rotation of the closure panel mountingend 52 relative to the second opening 46.

As shown in FIGS. 5, 6 and 8, the first flexible section 54 extends fromthe transition part 66 of the body mounting end 50. The first flexiblesection 54 includes a plurality of annular flexible rings 82 about whichthe first flexible section 54 bends. Specifically, the annular flexiblerings 82 resemble annular accordion folds that allow the first flexiblesection 54 to bend in any direction relative to the body mounting end50. Each of the annular flexible rings 82 has a curved outer surfacewhen viewed from the side such as in FIGS. 5, 6 and 8. Between eachadjacent pair of the annular flexible rings 82 there is a reduceddiameter region. Thus, the annular flexible rings 82 allow the firstflexible section 54 to stretch (elongate) and return to its shape andlength. In the depicted embodiment, the first flexible section 54includes approximately eleven of the annular flexible rings 82, therebydefining a first group of annular flexible rings. Further, the firstflexible section 54 has a first overall length L₁, as shown in FIG. 8.Each of the annular flexible rings 82 has a first wall thickness T₁.However, it should be understood from the drawings and the descriptionherein that the number of the annular flexible rings 82 can be adjustedto suit the geometric configuration of vehicles other than the vehicle10 depicted in FIGS. 1 and 2.

The second flexible section 56 extends from the tubular part 78 of theclosure panel mounting end 52. The second flexible section 56 includes aplurality of annular flexible rings 84 about which the second flexiblesection 56 bends. Specifically, the annular flexible rings 84, like theannular flexible rings 82, resemble annular accordion folds that allowthe second flexible section 56 to bend in any direction. Each of theannular flexible rings 84 has a curved outer surface. Between eachadjacent pair of the annular flexible rings 84 there is a reduceddiameter region. Thus, the annular flexible rings 84 allow the secondflexible section 56 to stretch (elongate) and return to its shape andlength. In the depicted embodiment, the second flexible section 56includes approximately seven of the annular flexible rings 84, therebydefining a second group of annular flexible rings. Further, the secondflexible section 56 has a second overall length L₂, as shown in FIG. 8.Each of the annular flexible rings 84 has a second wall thickness T₂.Each of the annular flexible rings 84 also includes a protrusion 86, asshown in FIGS. 5 and 6. The protrusions 86 are aligned with one anotheralong the length of the second flexible section 56. However, it shouldbe understood from the drawings and the description herein that thenumber of the annular flexible rings 84 can be adjusted to suit thegeometric configuration of vehicles other than the vehicle 10 depictedin FIGS. 1 and 2.

As shown in FIG. 8, in the first embodiment, the number of the annularflexible rings 82 is greater than the number of annular flexible rings84. As also shown in FIG. 8, the first overall length L₁ of the annularflexible rings 82 is greater than the second overall length L₂ of theannular flexible rings 84. Further, in the depicted embodiment, thefirst wall thickness T₁ of the annular flexible rings 82 is preferablythe same as the second wall thickness T₂. However, it should beunderstood from the drawings and the description herein that the firstwall thickness T₁ and the second wall thickness T₂ can be altered tochange the flexing characteristics of the annular flexible rings 82 and84 to suit the geometry of a vehicle other than the vehicle 10.

The middle flexible section 58 has an overall cylindric or tubular shapeand extends between the first and second flexible sections 54 and 56. Asshown in FIG. 2, the middle flexible section 58 extends between thefirst and second flexible sections 54 and 56 in a free floatingconfiguration with respect to the hinge 32 (the hinge structure). Morespecifically, the middle flexible section 58 is not attached to thehinge 32 or to any structure of the vehicle 10. The middle flexiblesection 58 is only connected to the first and second flexible sections54 and 56. The middle flexible section 58 has a third overall length L₃and a third wall thickness T₃. The third overall length L₃ is such thatthe first and third overall lengths L₁ and L₃ are each greater than thesecond overall length L₂. Further, the third overall length L₃ ispreferably approximately the same or slightly larger than the firstoverall length L₁. As well, the third wall thickness T₃ is greater thaneither of the first and second wall thicknesses T₁ and T₂.

The dimensions of the middle flexible section 58 are such that the firstand second flexible sections 54 and 56 have a more bendableconfiguration than the middle flexible section 58. More specifically,the first and second flexible sections 54 and 56 are configured andshaped to bend easily, while the middle flexible section 58 isconfigured and shaped to resist bending up to a certain point, but isable to bend upon the application of sufficient forces. For instance,the middle flexible section 58 is free of annular flexible rings makingbending less likely that bending of the first and second flexiblesections 54 and 56. Further, the middle flexible section 58 has a largerwall thicknesses than either of the first and second flexible sections54 and 56, making the middle flexible section 58 less flexible that thefirst and second flexible sections 54 and 56. In the depictedembodiment, the first and second wall thicknesses T₁ and T₂ areapproximately 1.5 mm. The third wall thickness T₃ is approximately 2.0mm. However, the thicknesses T₁, T₂ and T₃ can be varied and altered tosuit the geometry of a vehicle other than the vehicle 10.

The middle flexible section 58 includes an axially extending rib 88, asshown in FIGS. 5 and 6. The axially extending rib 88 of the middleflexible section 58 and the protrusions 86 of the annular flexible rings84 of the second flexible section 56 provide an installation orientationof the grommet 12. More specifically, during the installation process,an installer properly orients the grommet 12 for installation within thevehicle 10 by observing the location of axially extending rib 88 and/orthe protrusions 86.

As is shown in FIGS. 12-14, the first flexible section 54, the middlesection 58 and the second flexible section 56 are dimensioned andconfigured such that the middle section 58 pivots from a substantiallyvertical position (shown in FIG. 12) to a substantially horizontalposition (shown in FIG. 14) in a direction substantially parallel to thehinge when the closure panel is moved from the open position to theclosed position. As well, the first flexible section 54 and the secondflexible section 56 are configured and arranged to bend as the closurepanel 40 moves between the open position and the closed position toprevent contact of the grommet member 12 to the hinge structure 32.Further, as shown in FIGS. 12-14, the middle section 58 pivots about oneend of the first flexible section 54.

As shown in FIGS. 9-14, the grommet 12 is specifically configured tomove to the coiled orientation (FIGS. 9 and 12) when the trunk lid 16 ismoved to the closed position. Further, the grommet 12 is configured tomove to the elongated orientation (FIGS. 11 and 14) with the trunk lidmoved to the open position. An intermediate orientation of the grommet12 between the coiled orientation and the elongated orientation isdepicted in FIGS. 10 and 13. Throughout the range of movement of thetrunk lid 16 between the closed position and the open position, themiddle flexible section 58 is configured relative to the first andsecond flexible sections 54 and 56 such that the grommet 12 (the wiringgrommet member) remains laterally spaced from the hinge 32, as bestshown in FIGS. 12-14. More specifically, the grommet member 12 is movedto the extended or elongated orientation with the trunk lid 16 (theclosure panel) in the open position relative to the rear window supportportion 20 (the body panel) and the grommet 12 is moved to the coiledorientation with the trunk lid 16 (the closure panel) in the closedposition relative to the rear window support portion 20 (the bodypanel).

Further, the body mounting end 50 and the closure panel mounting end 52are spaced apart from one another with the grommet 12 in the extended orelongated orientation, as shown in FIGS. 11 and 14. However, the bodymounting end 50 and the closure panel mounting end 52 are positionedadjacent to one another with the grommet 12 in the coiled orientation,as shown in FIGS. 9 and 12.

More importantly, the grommet 12 (the grommet member) bends to thecoiled orientation with the trunk lid 16 (the closure panel) in theclosed position relative to the rear window support portion 20 (the bodypanel) without collapsing the wiring passageway P. Therefore, thegrommet 12 protects the wires W extending between the rear windowsupport portion 20 of the vehicle body 14 and the trunk lid 16. Morespecifically, with the grommet 12 installed in the first and secondopenings 38 and 46 and extending between the first and second openings38 and 46, the wires W extending through the passageway P are protectedagainst contact with metal body panels thereby preventing wear anddegradation of insulation on the wires.

Second Embodiment

Referring now to FIGS. 15 and 16, a grommet 112 in accordance with asecond embodiment will now be explained. In view of the similaritybetween the first and second embodiments, the parts of the secondembodiment that are identical to the parts of the first embodiment willbe given the same reference numerals as the parts of the firstembodiment. Moreover, the descriptions of the parts of the secondembodiment that are identical to the parts of the first embodiment maybe omitted for the sake of brevity.

The grommet 112 includes basically includes the body mounting end 50(same as in the first embodiment), the closure panel mounting end 52(same as in the first embodiment), a first flexible section 154, asecond flexible section 156 and the middle flexible section 58 (same asin the first embodiment). The grommet 112 further includes the hollowinterior that defines the passageway P (not shown in FIGS. 15 and 16).

The first flexible section 154 has a first group of the annular flexiblerings 160 and the second flexible section 156 has a second group of theannular flexible rings 162. In the second embodiment, the number ofannular flexible rings 160 (the first group) is less in number than thenumber of the annular flexible rings 162 (the second group). The grommet112 of the second embodiment is designed to fit the geometry of avehicle other than the vehicle 10. However, the grommet 112 isconfigured to move between an extended or elongated orientation and acoiled orientation is a free floating configuration spaced apart fromhinges that support a trunk lid.

The various body portions of the vehicle 10 are conventional componentsthat are well known in the art. Since the various body portions of thevehicle 10 are well known in the art, these structures will not bediscussed or illustrated in detail herein.

General Interpretation of Terms

In understanding the scope of the present invention, the term“comprising” and its derivatives, as used herein, are intended to beopen ended terms that specify the presence of the stated features,elements, components, groups, integers, and/or steps, but do not excludethe presence of other unstated features, elements, components, groups,integers and/or steps. The foregoing also applies to words havingsimilar meanings such as the terms, “including”, “having” and theirderivatives. Also, the terms “part,” “section,” “portion,” “member” or“element” when used in the singular can have the dual meaning of asingle part or a plurality of parts. Also as used herein to describe theabove embodiments, the following directional terms “forward, rearward,above, downward, vertical, horizontal, below and transverse” as well asany other similar directional terms refer to those directions of avehicle equipped with the present invention. Accordingly, these terms,as utilized to describe the present invention should be interpretedrelative to a vehicle equipped with the present invention.

While only selected embodiments have been chosen to illustrate thepresent invention, it will be apparent to those skilled in the art fromthis disclosure that various changes and modifications can be madeherein without departing from the scope of the invention as defined inthe appended claims. For example, the size, shape, location ororientation of the various components can be changed as needed and/ordesired. Components that are shown directly connected or contacting eachother can have intermediate structures disposed between them. Thefunctions of one element can be performed by two, and vice versa. Thestructures and functions of one embodiment can be adopted in anotherembodiment. It is not necessary for all advantages to be present in aparticular embodiment at the same time. Every feature which is uniquefrom the prior art, alone or in combination with other features, alsoshould be considered a separate description of further inventions by theapplicant, including the structural and/or functional concepts embodiedby such feature(s). Thus, the foregoing descriptions of the embodimentsaccording to the present invention are provided for illustration only,and not for the purpose of limiting the invention as defined by theappended claims and their equivalents.

1. A vehicle trunk structure comprising: a body panel defining a trunkopening and a first opening for wire passage; a trunk lid dimensioned tocover the trunk opening and defining a second opening for wire passage;a four-bar linkage hinge structure pivotally coupling the body panel tothe trunk lid for movement of the trunk lid between a closed positionwhere the trunk lid conceals the trunk opening and an open positionwhere the trunk lid exposes the trunk opening; and a wiring grommetmember located inboard of the four-bar linkage hinge structure, thewiring grommet member being attached only to the body panel and trunklid and free from connection to the four-bar linkage hinge structure andforming a wiring passageway between the first and second openings, thewiring grommet member including: a body mounting end attached to thebody panel to overlie the first opening; a trunk lid mounting endattached to the trunk lid to overlie the second opening; a firstflexible section extending from the body mounting end; a second flexiblesection extending from the trunk lid mounting end; and a middle sectionextending between the first and second flexible sections; wherein thefirst flexible section and the second flexible section are configuredand arranged to bend as the trunk lid moves between the open positionand the closed position to prevent contact of the wiring grommet memberto the hinge structure.
 2. The vehicle trunk structure according toclaim 1, wherein the trunk lid mounting end includes an attachmentportion having an oval shape that extends in a first direction with thesecond flexible section extending from the trunk lid mounting end in asecond direction that is angularly offset from first direction.
 3. Thevehicle trunk structure according to claim 1, wherein the wiring grommetmember is in an extended orientation with trunk lid in the open positionrelative to the body panel, and the wiring grommet member is in a coiledorientation with the trunk lid in the closed position relative to thebody panel.
 4. The vehicle trunk structure according to claim 3, whereinthe wiring grommet member bends to the coiled orientation with the trunklid in the closed position relative to the body panel without collapsingthe wiring passageway.
 5. The vehicle trunk structure according to claim3, wherein the body mounting end and the trunk lid mounting end arespaced apart from one another with the wiring grommet member in theextended orientation.
 6. The vehicle trunk structure according to claim3, wherein the body mounting end and the trunk lid mounting end arepositioned adjacent to one another with the wiring grommet member in thecoiled orientation.
 7. The vehicle trunk structure according to claim 1,wherein the body mounting end, the trunk lid mounting end, the firstflexible section, the second flexible section and the middle section areall made as a single unitary homogeneous member.
 8. The vehicle trunkstructure according to claim 1, wherein the first flexible section andthe second flexible section have a more bendable configuration than themiddle section such that the first flexible section and second flexiblesection are configured and arranged to bend before the middle section.9. The vehicle trunk structure according to claim 1, wherein the firstflexible section has a first overall length, the second flexible sectionhas a second overall length and the middle section has a third overalllength such that the first and third overall lengths are each greaterthan the second overall length.
 10. The vehicle trunk structureaccording to claim 1, wherein the first flexible section and the secondflexible section each include a plurality of annular flexible ringswhich facilitate bending of the first flexible section and the secondflexible section.
 11. The vehicle trunk structure according to claim 1,wherein the first flexible section has a first group of the annularflexible rings and the second flexible section has a second group of theannular flexible rings, the first group being greater in number than thesecond group.
 12. The vehicle trunk structure according to claim 11,wherein the middle section is free of annular flexible rings.
 13. Thevehicle trunk structure according to claim 1, wherein the middle sectionremains substantially straight while the trunk lid is moved from theopen position to the closed position.
 14. A vehicle trunk structurecomprising: a body panel defining a trunk opening and a first openingfor wire passage; a trunk lid dimensioned to cover the trunk opening anddefining a second opening for wire passage; a hinge structure pivotallycoupling the body panel to the trunk lid for movement of the trunk lidbetween a closed position where the trunk lid conceals the trunk openingand an open position where the trunk lid exposes the trunk opening; anda wiring grommet member located inboard of the hinge structure, thewiring grommet member being attached only to the body panel and trunklid and free from connection to the hinge structure and forming a wiringpassageway between the first and second openings, the wiring grommetmember including: a first attachment part attached to one of the bodypanel and the trunk lid to overlie the corresponding one of the firstand second openings; a second attachment part attached to the other ofthe body panel and the trunk lid to overlie the corresponding other ofthe first and second openings; a first transition part extending awayfrom the first attachment part in a direction that defines an acuteangle relative to the one of the body panel and the trunk lid; a secondtransition part extending away from the second attachment part in adirection that defines an acute angle relative to the other of the bodypanel and the trunk lid; and a flexible portion extending between thefirst transition part and the second transition part; wherein theflexible portion is configured and arranged to bend as the trunk lidmoves between the open position and the closed position to preventcontact of the wiring grommet member to the hinge structure.
 15. Thevehicle trunk structure according to claim 14, wherein the flexibleportion includes: a first flexible section that extends from the firsttransition part; a second flexible section that extends from the secondtransition part; and a middle section that extends between the first andsecond flexible sections.
 16. The vehicle trunk structure according toclaim 15, wherein the first flexible section and the second flexiblesection have a more bendable configuration than the middle section suchthat the first flexible section and second flexible section areconfigured and arranged to bend before the middle section.
 17. Thevehicle trunk structure according to claim 15, wherein the firstflexible section has a first group of annular flexible rings and thesecond flexible section has a second group of annular flexible rings,the first group being greater in number than the second group.
 18. Thevehicle trunk structure according to claim 17, wherein the middlesection is free of the annular flexible rings.